Internal-combustion engine



Nov. 4 1924.

C. W. KELLER ET AL INTERNAL COMBUSTION ENGINE Filed Jan. 28 1922 3 Sheets-Sheet l f W/lcllela Alid 2121 on.

C. W. KELLER ET AL Filed Jan. 28

' Saver H3074 (W/fella Llifanflwz.

Nov. 4 {1924. 1,513,911

C. W. KELLER ET AL INTERNAL COMBUSTION ENGINE Filed Jan. 28, 1922 .3 Sheets-Sheet 5 Q A 7 L %2 w I Q\ N Suva/H015 amen i LHLa/ino z. and

Patented Nov. 4, 1924.

UNITED STATES 1,513,911 PATENT OFFICE.

CLYDE W. KELLER AND LESTER H. CANNON. OF KANSAS CITY, MISSOTJ'RI.

INTERNAL-COMBUSTION ENGINE.

Application filed January 28. 1922. Serial No. 532,518.

To all whom it may concern Be it known that we, CLYDE V. KELLER and LESTER H. CANNON, citizens of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to internal combustion engines, and particularly to the valve mechanism thereof.

The general object of the invention is to 7 length of the valves.

A still further object is to provide improved means for keeping the valves cool and for oiling the valves and for preventing loss of compression and preventing the lubricating oil from getting into the cylinders of the engine.

Other objects haveto do with the details of construction and arrangement of parts as will appear more fully hereinafter.

Our invention is illustrated in the accompanying drawings, wherein Figure 1 is a longitudinal sectional view, with parts in side elevation, of an internal combustion engine embodying our invention;

Figure 2 is a vertical transverse section on the line 22 of Figure 1;

Figure 3 is a detail face view of the left hand end of the engine with the end cover plate removed;

Figure is a detail sectional view of the valve casing;

Figure 5 is a detail sectional view illustrating particularly the springs for the valves;

Figure 6 is a detail view through one of the valves;

Figure 7 is a detail. view illustrating one of the drainage troughs;

Referring to these drawings, it Will be seen that we have illustrated a four-cycle internal combustion engine of ordinary type having the usual cylinders 10, the usual crank case 11, the pistons 12, the crank shaft 13 operatively connected to the pistons, and the usual water jackets 14 surrounding the cylinders 10. The pistons 12 are of ordinary construction and all the parts which have been referred to are of conventional form.

Mounted upon the upper end of the piston block and constituting the cylinder head for the block is a casting 15, this casting being formed to provide two longitudinally extending, cylindrical valve chambers 16. The

inlet chamber has in its bottom a series of ports 17 the number of these ports corresponding to the number of cylinders in the engine, and the inlet chamber has in its top a number of ports 18 also corresponding to the number of cylinders. The exhaust chamber is provided with the ports 19 in its bottom opening into the several cylinders and ports. 20 in its top. Disposed upon the top of the casting 15 and either formedintegral therewith or preferably bolted thereto is a casting 21 formed to provide two longitudinally extending chambers 22 and 23, the chamber 22 constituting an inlet manifold and the chamber 23 the exhaust manifold. Into these chambers the ports 18 and 25 and 26 are removable from the chambers 16. Each of these sleeves is closed at one end by a screw-threaded annular cap 27 holding in place a tapered anti-friction bearing 28 having tapered anti-friction elements disposed in a suitable raceway. The forward ends of the sleeves 25 and 26 are closed by annular screw-threaded caps 29 holding in place the anti-friction bearing 30 having tapered anti-friction elements.

Disposed within the sleeve 25 is the exwheel 48 moun The sprocket chain is of the silent type and 45 50, each exten haust valve 31. This is a solid shaft having reduced ends 32 and 33 adapted to be disposed within the bearings 28 and 30 and rotate therein, this shaft-likevalve having 5 a plurality of diametrically extending ports 34" formed therethrough, these ports being separated from each other by circumferen-' tial grooves 35 wherein resilient packing rings 36 are disposed, these packing rings expanding against the interior'of the sleeve 25 and preventing communication between the cylinders and loss of compression. The extremity 32 of the valve 31 is reduced, as

f before stated, and then tapered, this tapered end being formed with a keyway. Carried upon this tapered end is the gear wheel 37 held in place by a suitable key and gear nut 38 enga 'ng the extremity of the shaft. The

inlet va ve 39 is of the same character as the exhaust valve 31 and is'formed with the dia-' metrical y extending passages or ports 40.

This: inlet valve has. one end reduced to fit within the bearing 28 "and the other end reduced' to ,fit within the bearing 30, this reduced end being formed with a keyway and meshes with the gear wheel 37 and also carrying upon it the sprocket wheel 46, over which a sprocket chain 47 passes. This sprocket chain asses around a sprocket ted upon the crank shaft 13.

the ratio of the gears is such that the valves are driven; at one-fourth of crank shaft speed.

The sleeves and 26 are each formed with diametrically disposed ports 49 coinciding with the ports 17, 18, 19 and 20 respectively and the bottom of thesleeve on each side of the lower series of ports 49 is formed a plurality of longitudinally extending slots pgir of slots on each side of the ports 49 ing relatively deeper than and being longer than the corresponding port 49. The casting 15 is formed on each side of the ort 0' nings 17 and 19 with longitudinally diiig-recemes 51' in which are disposed oil scrapers 52, these oil scrap ers being resilient, metallic strips slightly curved to conform to the curvature of the rotating valve and resiliently urgedby springs 53 into con- 5 tact with the respective valves. These scrapers act to prevent oil passing into the ports 17 and 19from the rotating valves and act to prevent any loss of compression. The inlet valve 39 rotates in a clockwise direc- 69 tion and'the exhaust valve 31- in a counterwhich at its sides opens to the chamber 16 adjacent the 'scra rs 52 so that oil which may be scraped rom the valves 31 and 39 will pass into this drainage trough 54. This the exterior of the valves. The oil ducts 55 may communicate with each other or'be entirely separated from each other, and oil may be supplied to these ducts in any suit .able manner, as by a forced feed system (not illustrated), oil being forced through a pipe 56opening into one or both of the ducts 55, the passage of oil being controlled by a valve '57 which will regulate the amount of oil supplied to the valves. 7 1

Of course; the intake manifold 22- is to be connected to a suitable carbureter and inasmuch at it runs parallel to and is separated from the exhaust manifold merely by an intermediate wa1l,.it follows that the fuel will be highly heated and placed in the best possible condition for ignition and explosion rior to its passage through the valve 39 and into the cylinders of the engine. Inasmuch as the ports 34 and 40 extend diametrically across the solid valves 31 and 39, it is obvious that there will be no impediment to the free movement of the charge into andout of the cylinders, as is liable to be the case where valves are hollow. M

It will likewise be noted that the valve sleeves within which the valves revolve are there will be very little liability of the valves getting out of order. The tapered valves may be set up within the tapered sleeves from: time to time by adjusting the caps 29, and inasmuch as the valves rotate in a film of oil and are supported at their ends by the antifriction bearings, it follows tll ilat there will be a minimum of friction.

is trouble found with the valves commonly found on internal combustion engines and valve construction eliminates the does away with the necessity of valve grinding. The packing Irings 3 may be readily put in place whenever necessary and these with the oil scrapers willprevent any'loss of compression. By removing the valves and the sleeves, the oil scrapers may be readily removed from their recesses for the replacement of springs or the replacement of While we have illustrated certain struc- V tu'ral details and a certain arrangement of arts which we believe to be particularly effective, we do not wish to be limited thereto as it is obvious that many changes might be made in these details and in the exact arrangement of the parts without departing from the spirit of the invention as defined in the appended claims.

We claim 1. An internal combustion engine including an engine block, a cylinder head, two parallel, longitudinally extending chambers formed with ports opening into the cylinders, parallel, contiguous inlet and exhaust manifolds extending logitudinally from the chambers and having ports opening there into, two parallel, solid valves disposed in said chambers and rotating therein and each having diametrically extending ports equal in number to the number of the cylinders, engine operated means for rotating said valves, means for supplying oil to the valves, means for preventing the passage of oil into the cylinders comprising spring actuated strips disposed in the cylinder head on each side of the ports leading to the cylinder and yieldingly bearing against the rotatable valves, there being a pair of said strips as sociated with each port in each valve and being disposed on each side of each port, said strips being convergent with relation to each other and the port, a drainage chamber opening through the walls of the valve chambers inward of the continguous strips whereby to receive surplus oil from said.

valves, and means for conducting the oil into said drainage chamber to the crank case of the engine.

2. An internal combustion engine including an engine block, a cylinder head having a longitudinally extending valve chamber having diametrically disposed ports, one series of ports opening into the cylinder, a manifold into which the other series of ports open, a sleeve disposed within the chamber and removable therefrom and having ports registering with the ports of the chamber, the chamber having recesses in its walls disposed on each side of the ports leading to the cylinders, a sleeve having slots reglstering with said recesses, strips disposed in said slots and recesses, springs urging the strips inward, a rotatable valve disposed in the chamber and having diametrically extending ports adapted to establish or cut off communication between the manifold and the cylinder as the valve rotates, said strips bearing against the periphery of the valve, said valve between its ports having circumferentially extending grooves, packing rings disposed within said grooves, means for supplying lubricant between the exterior of the valve and the sleeve, and means disposed adjacent one set of said strips for withdrawing excess lubricant.

3. An internal combustion engine including an engine block, a cylinder head having two parallel, longitudinally extending chambers formed with a series of ports opening into the cylinders, a series of diametrically disposed ports, the cylinder head being formed with water passages extending longitudinally of the cylinder head and conti uous to said chamber, a casting detachab y engaged with the cylinder head and disposed above the same and having two parallel, contiguous, longitudinally extending intake and exhaust manifolds into which the ports of the cylinder head open, sleeves disposed within said chambers and forming a lining for the same and having ports registering with the ports of the chambers, the wall of the chamber being provided with a series of longitudinally extending recesses on each side of the several ports opening into the cylinders, and the sleeve having corresponding slots, scrapers disposed in said recesses and slots and resiliently urged inward, the walls of the chambers and the sleeve being formed with longitudinally extending oil connecting ports opening into the interior of the sleeves inward of the contiguous strips of the two cylinders, an oil drainage chamber into which said ports lead, longitudinally extending rotatable valves disposed in said sleeves and having each a series' of diametrically extending ports adapted to align with the ports of the sleeve chambers, engine operated means for rotating said valves in opposite directions, and means for supplying oil to the space between the valves and corresponding sleeve.

4. An internal'combustion engine including an engine block, a cylinder head having two parallel, longitudinally extending chambers formed with a series of ports opening into the cylinders, a series of diametrically disposed ports, the cylinder head being formed with. water passages extending longitudinally of the cylinder head and contiguous to said chamber, a casting detachably engaged with the cylinder'head and disposed above, the same and having two arallel, contiguous, longitudinally extending intake and exhaust manifolds into which the ports of the cylinder head open, sleeves disposed within said chambers and formthe wall of the chamber being provided with a series of longitudinally extending recesses on each side of the several ports opening 'into the cylinders and the sleeve having corresponding slots, scrapers disposed in said recesses and slots and resiliently urged'inward, the walls of the cl'rambers and the sleeve being formed with longitudinally extending oil connecting ports opening into the interior of the sleeves inward of the contiguous strips of the two cylinders, an oil drainage chamber into which said ports lead, longitudinally extending rotatable valves disposed in said sleeves and having 7 each a series of diametrically extending.

'ports adapted to align with the ports of the sleeve .chamlbers, each of said valves being engine operated means for rotating sai valves in opposite directions, and means for supplying oil to the space between the valves and corresponding sleeve.

In testimony whereof we hereunto aflix;

our signatures.

' CLYDE W. KELLER.

LESTER H. CANNON. 

